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/ˌɔː(ɹ)nɪθəˈsɛlɪdən/ · noun
(zoology, now historical) Any of the Dinosauria, formerly known as Ornithoscelida..
comparing the pelvis and hind limb of the ornithoscelidan with that of the crocodile[…]
Use ornithoscelidan when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Ornithoscelidan means (zoology, now historical) Any of the Dinosauria, formerly known as Ornithoscelida..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
comparing the pelvis and hind limb of the ornithoscelidan with that of the crocodile[…]
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